本题目来源于试卷: Physics Unit25: Optical Instruments，类别为 通用国际物理
[单选题]
If the human eyeball is too short from front to back, this gives9kvaac,c.7q. u 9uefp rise to a vin t2hr2ika0u+ )/tug 1 csl7kosioni7ltr1c+22uh0 a tsgokn u k)/ defect that can be corrected by using
A. convex meniscus eyeglasses.
B. concave meniscus eyeglasses.
C. cylindrical eyeglasses.
D. contact lenses, but no ordinary lenses.
E. shaded glasses (i.e., something that will cause the iris to dilate more).
参考答案: A
本题详细解析:
暂无
| 
